Figure-Eight-Shaped and Cage-Shaped Cyclic Polystyrenes
SCIE
SCOPUS
- Title
- Figure-Eight-Shaped and Cage-Shaped Cyclic Polystyrenes
- Authors
- Lee, T; Oh, J; Jeong, J; Jung, H; Huh, J; Chang, T; Paik, HJ
- Date Issued
- 2016-05-24
- Publisher
- American Chemical Society
- Abstract
- Nonlinear polystyrenes (PS) with similar molecular weights but with different molecular structures having star-, figure-8-, and cage-shaped architectures were synthesized by combining atom transfer radical polymerization (ATRP) and click chemistry. Figure-8- and cage-shaped PS were fractionated by using a gradient normal phase liquid chromatography as confirmed by SEC-LS, MALDI TOF MS, H-1 NMR, and FT-IR. spectrometry. Their purities were estimated by using a two-dimensional liquid chromatography (2D-LC). The glass transition temperatures of these topologically different polymers were in the order of cage-, figure-8-, and star-shaped polymers possibly due to the multiple links that constrain the overall molecular diffusivity in the case of multicyclic polymers (figure-8, and cage). Monte Carlo simulation on the glass transition behavior of model system also agreed well with the experimental results.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/36789
- DOI
- 10.1021/acs.macromol.6b00093
- ISSN
- 0024-9297
- Article Type
- Article
- Citation
- MACROMOLECULES, vol. 49, no. 10, page. 3672 - 3680, 2016-05-24
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